Gas-burner.



H. W. ODOWD.

GAS BURNER.

APPLlcATIoN FILED JULY 15. 1909.

Patented Mar. 14, 1916.

2 SHEETS-SHEET 2.

HENRY W. ODOWD, OF PEEKSKILL, NEW YORK.

GAS-BURNER.

To all 'whom 'it may concern.'

Be it known that I, HENRY W. ODown, a citizen of the United States, and' a resident of Peekskill, county of Westchester, and State of New York, have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification.

My invention relates to gas burners of the Bunsen type; and while it may be embodied in gas or vapor burners adopted for various purposes, it is more particularly applicable to burners for stoves and incandescent lamps.

Objects of the invention are to provide a burner in which a perfect mixture of gas or vapor and air will be produced; which will permit of the ready and instant regulation of the supplies 0f gas and air; which will render any possible leakage of gas unobjectionable; and to provide a structure of the character described which will be simple, durable, and cheap in construction and economical in operation. These and other objects of the invention will in part be obvi- A ous and in part be made clear from the following description.

The invention consists in the novel parts, improvements, combinations, and features of construction herein shown and described.

The accompanying drawings, which are referred to herein and form a part hereof, illustrate two embodiments of the invention, the same serving in connection with the description herein to explain the principles I thereof.

Of the drawings: Figure 1 illustrates an embodiment of the invention, partly in ver tical cross-section and partly in perspective; Fig. 2 is a'plan view of the same; Fig. 3 is a horizontal sectional view of the same' taken on the line 3-3 of Fig. l; Fig. 4 is a Y vertical sectional view illustrating another embodiment of the invention; and Fig. 5 'is a plan view of the. same taken on the line 5 5 of- Fig. 4.

I have found that the best 'results' can be secured in burners of the Bunsen type by having the gas pass into 'the air mixing chamber in a compactstream. By employing this character of stream the maximum energy of the gas is utilized in entraining the air. It is impracticable, however, to

regulate a burner of this kind without weak-4 enmg this central stream. The usual man- Speoication of Letters Patent. Patented Mar. 14, 1916.

Application led July 15, 1909. Serial No. 507,673.

ner of controlling such a burner is by employing a needle valve. This, however, increases the stream lines in the orifice so that a large part of the energy of the gas is wasted.

In accordance with my invention I employ a central normally open relatively large orifice of such a size as to supply all the gas required under high pressure conditions. In order to increase the supply of gas under low pressure conditions I provide two or more relatively small auxiliary orifices symmetrically arranged with relation to the central orifice and inclined thereto so that the jets of gas issuing from the auxiliary orifices will combine with the jet issuing from the central oriice, thereby conserving the energy of the gas, means being provided to regulate the supply of gas through the auxiliary orifices.

According to one feature of the invention, means are provided whereby certain of the auxiliary orices may be regulated independently of the others so that some of the orices may be shut 0H while leaving the remaining orifices fully open, the remain ing ,orices nevertheless being symmetrically arranged with relation to the central jet.

Referring now in detail to the constructions shown in the drawings the embodilment of the invention illustrated in Figs. 1,

2, and 3 comprises a nozzle 1 connected to a gas supply pipe 2, having the ordinary stop cock 4. Extending through the nozzle 1 is a relatively large central orifice 6 and a plurality of relatively small auxiliary orivupon said nozzle 1, said cap having a central orifice and converging orilices in register with the orifices of the nozzle. Preferably and as shown, moreover, the orifices of both the nozzle and cap are disposed in symmetrically arranged sets. The ,orifices 9, also, of one set are made longer than the orifices 10 of another set, so that the orices of the cap 8, being of uniform size, while registering as to one set 11 with the extended orifices 9 of thenozzle, willbe out of register as to another set 12 with the oriices 10, thus permitting the iiow of gas through the orifices 9 and 11 while shutting iork off the f low of gas thro-ugh the orifices 10 and 12 simultaneously. 'Ihe orifices 9 may be extended to any suitable degree and the spaces between the orifices will of course be "suflicient to permit one set of orifices inthe ccap to be out of register with the corre spending orifices of the no-zzle while the orifices of another set in the cap are 1n register with the corresponding and longer orifices of the nozzle. j

Another feature of the invention resides in the provision of means for/keeping the cap in perfect alinement with the nozzle. lVhile this may be done in various ways, 1n the embodiment of the invention illustrated in Fig. 1 a screw 13 is provided, the same passing through the nozzle 1 and being screwed into the cap 8, which is tapped for that purpose. On the screw 13 and between its head and the lower inside face of .the top of the nozzle 1 is a small spiral sprlng ,14 which acts to keep the cap in perfect alinement. The main central orifice 6 will of course extend through the screw 13. In this embodiment of the invention, also, the top of the nozzle 1 is suitably concaved and the cap 8 correspondingly convexed, which arrangement Aassists in malntaining the alinement. In this embodiment, moreover, and as shown, the top face of the cap 8 is concaved to correspond with the convexity of the lower face of'said cap, the concave space, asshown, including the orifices.

' Another feature of the invention resides in providing means for disposing of any gas escaping between the cap and the nozzle. While this may be done in any suitable manner,'preferably and as shown, suitable slots 15 are ormed-in the cap 8 near the top thereof,'through which slots the escaping gas is directed into the air current and so brought to the place of combustion.

In an air mixing chamber 17, into which the nozzle and cap protrude, isan air shutter 18, having a series of openings '19 in register with corresponding openings 20 provided preferably, in the base of the air .chamber 17 for the admission of air. By `means of the downwardly projecting lug 21l the air shutter 18 may be rotated to control the supplyof air to the air mixing chamber.

In the embodiment of the invention illustrated in Figs. 4 and l5, which is adapted for use in burners lfor incandescent lamps is shown another form of the means for regulating the flow of the gas, which means in this particular embodiment takes the form of a plate 23 rotatably mounted onthe nozzle 1 by means of a screw 24, whose overlapping head 25 is in alinement with the' lower inside fade of the top of the nozzle, said screw 23 being engaged at its upper end by a threaded jam nut 26 in alinement with the upper end of the plate23, said plate being thereby kept in alinement with the nozzle. Thecentral orifice '6, as in the embodiment of the invention illustrated in Fig.'

1, extends through the center of the screw vH24. The plate. 23 is'provided witL splu- Itmay be here observed that the converging orifices need not be converged throughout their entire extent provided they converge in the cap sufficiently to make their jets of gas impinge uponthe central jet at a suitable point, as heretoforel set forth. The orifices in the nozzle may extend in any desired direction,'there being shown in the embodiment of the invention illustrated in Fig. 4 orifices 28 extending in a vertical direction and being of a somewhat greater diameter than the corresponding orifices of the plate'23.

' While various means may be provided for rotating the plate 23, preferablyl and as shown, a projecting arm 29 extends ldownwardly through a slot 30 in the air shutter 31 and a slot 32 in the base 33 of the burner. The air shutter 31 has a plurality of openings 34 in register with corresponding openings 35 in the base through which the supply of air is admitted. The slot 32 in the-base is, preferably and as shown, extended so that the rotation of the air'shutter 31 may be controlled by either the arm 29 or the lug 21, and it will be readily apparent that thev supplies of air and gas may be thus regulated and controlled either simultaneously or independently.

It will be seen that by reason of the construction shown and described a form of gas burner is provided in which a perfect mixture of air and gas and vapor. may be produced, and the supply of gas regulated to compensate for variations of pressure and density. Advantages of the invention other than those hereinbefore set forth will be apparent to those skilled in the art.

It is to be understood that mv invention in its broader aspects is not limited to the precise construction shown nor to any particular construction by which the invention has been or may be carried into effect, as many changes may be made in the details of th. parts without departing from the main principles of the invention and without sacrificing its chief advantages.

I claim':

1. A gas burner comprising a nozzle having a central gas orifice, and a\plurality of symmetrically arranged gas orifices so converging upon said central orifice that their' jets of gas will Vimpinge upon the central jet to form a compact stream.

v 2. A gas burner comprising a nozzle having a central gas orifice, and a plurality of sets of symmetrically arranged gas orifices converging upon'said central orifice, wherep from said central orifice.

3. A gas burner comprising a nozzle having a central gas orifice, a plurality of sets of symmetrically arranged gas orifices converging upon said central orice, and means for regulating the iow of gas through the orifices of each of said plurality of sets, said means being constructed so as to permit the flow of gas through the orilices of one set while preventing the iow of gas through the oriices of another set.

4. A gas burner comprising a nozzle, a

cap rotatably mounted upon said nozzle, a screw connecting said cap and nozzle and having a lcentral orifice extending therethrough, and a plurality of' symmetrically arranged orices extending through said cap and nozzle and converging upon said central orifice.

5. A gas burner comprising a nozzle, a cap rotatably mounted upon said nozzle, a screw connecting said cap and nozzle and having a central orifice extending therethrough, a plurality of symmetrically arranged oriices extending through saidcap and nozzle and converging upon said central orifice, and slits in said cap for the passage of escaping gas.

6. A gas burner comprising a nozzle, a

cap rotatably mounted upon said nozzle, a screw connecting said cap and nozzle and having a central orifice extending therethrough, a plurality of sets of symmetrically arranged oriices extending through said cap and nozzle and converging upon said central orifice, and means for regulating the iow of gas through said orices said means being arranged so as to permit the How of gas through the orifices of one set while preventing the flow of gas through the ori ces of another set.

7 A gas burner comprising a nozzle with a concaved upper portion, a cap with a correspondingly convexed lower portion rotatably mounted on said nozzle, a screw connecting said cap and nozzle and having a central orifice extending therethrough, and a spring operatively arranged between said nozzle and `said screw. f

8. A gas burner comprising a nozzle, a cap rotatably mounted upon said nozzle, a screw connecting said capand nozzle and having a central orifice extending therethrough, a plurality of sets of symmetrically arranged orifices extending through said cap and nozzle and converging upon saidv central orilice, the orifice of one set in the cap being respectively of greater area than the orices of another set in said cap, whereby the orifices of one of said sets will be in register with the corresponding orifices in said nozzle, while the oriices of another set in said cap will be out of register with any orifices in said nozzle.

In testimony whereof, I have signed my name .to this specification in the presence of two subscribing witnesses.

HENRY W.' ODOWD. Witnesses:

. GEO. H. SCUDDER,

R. L. BOGART. 

